Stashable wind and rain protection.

Toss the Pearl Izumi Men's MTB WRX Jacket in your pack before you rip up your local trails for the day. Its lightweight, packable design features a MTB Barrier shell and 2.5-layer charcoal membrane that protects you from passing showers and blustery winds when you're riding over cloud-draped peaks and ridgelines. The full-length internal draft flap seals out wind-driven rain and gusty winds from working their way inside the jacket. Armpit and hood venting actively regulate your body temperature when you're working up a sweat. Moreover, you'll find its vented hood fits comfortably over your favorite mountain bike helmet, should you need to hunker down in inclement weather.

Have an answer for Derek P.?

Hey Derek - I rode in Hood River this past weekend with a buddy who just got this jacket. Hood River is known for high winds (and the wind was howling a couple days) and he did not have an issue with the hood catching or flapping. Feel free to contact me directly with any additional questions.

Comment on Kyle Livingston's answer:

Cool Waterproof Jacket!

Familiarity: I've put it through the wringer

This thing seems to be designed specifically for a true mountain biker. Everything about it just makes sense for actual riding and being protected while i'm riding in the mountains where the weather is unpredictable. The hood fits over my helmet with a vent in back so air can blow through and not blow it off while shredding down the mountain. I use this jacket all the time, on and off the bike.